Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lai tap cho snippets" » "bai tap cho snippets", "hai tap cho snippets", "lai tam cho snippets", "lai tap co snippets", "lai cap cho snippets", "lai tap chi snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("lai tap cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lai tap cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lai tap cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lai tap cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.